Portion of a key blade blank



FIG. 1 is a front view of a first embodiment of my new design of a portion of a key blade blank;

FIG. 2 is a right side view of a first embodiment of my new design of a portion of a key blade blank;

FIG. 3 is a left side view of a first embodiment of my new design of a portion of a key blade blank;

FIG. 4 is a top view of a first embodiment of my new design of a portion of a key blade blank;

FIG. 5 is a bottom view of a first embodiment of my new design of a portion of a key blade blank;

FIG. 6 is a front view of a second embodiment of my new design of a portion of a key blade blank;

FIG. 7 is a right side view of a second embodiment of my new design of a portion of a key blade blank;

FIG. 8 is a left side of a second embodiment of my new design of a portion of a key blade blank;

FIG. 9 is a top view of a second embodiment of my new design of a portion of a key blade blank; and,

FIG. 10 is a bottom view of a second embodiment of my new design of a portion of a key blade blank. 

The ornamental design for portion of a key blade blank, as shown and described. 